Your search for "Acidic Slime 140" revealed the following:
Acidic Slime (CMD) from Commander 2011, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Karl Kopinski Card Text:Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)When Acidic Slime enters the battlefield, destroy...
Acidic Slime - Prime Slime (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Wizard of Barge Card Text: Prime SlimeDeathtouchWhen Acidic Slime enters the battlefield, destroy target artifact, enchantment, or land.